Greer was an NBA All-Star 10 times in his 15-year career with the 76ers and Syracuse Nationals. He was was also on the 1967 Philadelphia championship team, which ended the Celtics' eight-year run as NBA champions.

Greer was the first player to have his number retired by the 76ers when the team hung his No. 15 jersey from the rafters in 1976. He still leads the organization in points, field goals, field goals attempted, games and minutes played.

He was drafted in 1958 by the Syracuse Nationals and moved with the franchise to Philadelphia five years later, spending his entire career with the franchise.

It's a sad day because one of my childhood heroes, Hal Greer, passed away. Prayers go out to his family during this difficult time.

"In addition to his historic contributions on the court, Greer will forever be remembered as a true gentleman who used the tremendous platform of basketball to uplift and inspire others," the team said in a statement.

The team also said it will honor Greer in Monday's Game 2 of the first round of the playoffs against the Heat in Philadelphia.